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High-Speed, Wide-Input, Single-Phase MOSFET Driver

High-Speed, Wide-Input, Single-Phase MOSFET Driver has 0.1µA Quiescent Current, 6V to 24V Input for High-Performance Desktops, Servers, and Notebooks

Product Details

Key Features

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 6
VIN (V) (max) 24
IOUT1 (A) (max) 30
Switch Type External
# DC-DC Outputs 1
Switching Frequency (kHz) 2000
Package/Pins TDFN/10
UMAX/10
Budgetary
Price (See Notes)
1.35
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Simplified Block Diagram

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Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 6
VIN (V) (max) 24
IOUT1 (A) (max) 30
Switch Type External
# DC-DC Outputs 1
Switching Frequency (kHz) 2000
Package/Pins TDFN/10
UMAX/10
Budgetary
Price (See Notes)
1.35

Key Features

  • Single-Phase Synchronous Drivers
  • Up to 24V (max) Input Voltage
  • 0.1µA (typ) Quiescent Current in Shutdown Over Temperature
  • 0.5Ω/1.0Ω/0.7Ω/1.3Ω ROUT Drivers
  • 12ns (typ) Propagation Delay
  • 11ns (typ) Rise/Fall Times with 3000pF Load
  • Adaptive Dead Time and User-Programmable Delay Mode
  • Up to 2MHz Operation with TDFN Package
  • Up to 1.2MHz Operation with µMAX Package
  • Enable Function
  • TTL- and CMOS-Compatible Logic Inputs
  • Available in a Space-Saving Thin DFN Package

Applications/Uses

  • Desktops, Notebooks, and Servers
  • Multiphase Buck Converters
  • Processor-Core Voltage Regulators
  • Switching Power Supplies
  • Voltage Regulator Modules (VRMs)

Description

The MAX8552 highly integrated monolithic MOSFET driver can drive a pair of power MOSFETs in single or multiphase synchronous buck-converter applications that provide up to 30A output current per phase. The MAX8552 simplifies PC board layout in multiphase systems, particularly three phases and higher. High input voltages up to 24V allow the MAX8552 to be used in desktop, notebook, and server applications. Each MOSFET driver can drive 3000pF capacitive loads with only 12ns propagation delay and 11ns (typ) rise and fall times, making the MAX8552 ideal for high-frequency applications.

User-programmable break-before-make circuitry prevents shoot-through currents, maximizing converter efficiency. An enable input allows total driver shutdown (<1µA typ) for power-sensitive portable applications. The PWM control input is compatible with TTL and CMOS logic levels. The MAX8552, along with the MAX8524 or the MAX8525 multiphase controllers, provides flexible 2-, 3-, 4-, 6-, or 8-phase CPU core-voltage supplies.

The MAX8552 is available in space-saving 10-pin TDFN and µMAX packages and is specified for -40°C to +85°C operation.

Simplified Block Diagram

MAX8552: Typical Operating Circuit MAX8552: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .